We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
The evolution of cerebellar tonsillar herniation after cranial vault remodeling surgery.
- Authors
Leikola, J.; Hukki, A.; Karppinen, A.; Valanne, L.; Koljonen, V.
- Abstract
Purpose: We sought to examine the pre- and postoperative changes of cerebellar tonsillar herniation by MR imaging in asymptomatic pediatric patients with nonsyndromic, single-suture craniosynostosis (N-SSSC), who underwent cranial vault remodeling surgery without suboccipital decompression. We required cerebellar tonsillar herniation through foramen magnum ≥3 mm for Chiari type I malformation (CMI). We hypothesized that the increase of intracranial volume by cranial vault remodeling would correct the asymptomatic CMI. Methods: We identified 9 patients among 121 N-SSSC children undergoing craniofacial surgery from January 2004 to October 2010 with CMI. However, two of them were excluded from the study due to missing postoperative MR images. In the final study population, six were males, five were scaphocephalic, while two were diagnosed with coronal synostosis. Results: In four of the cases, the CMI was decreased in postoperative MR imaging varying from 6 to 12 mm. In three cases, the herniation remained stable. The median change of cerebellar tonsillar herniation was −6.5 mm. Conclusions: We conclude that asymptomatic patients with existing CMI may benefit from cranial vault remodeling surgery alone increasing the intracranial volume.
- Subjects
HERNIA; MAGNETIC resonance imaging; JUVENILE diseases; CRANIOSYNOSTOSES; CRANIAL sutures
- Publication
Child's Nervous System, 2012, Vol 28, Issue 10, p1767
- ISSN
0256-7040
- Publication type
Article
- DOI
10.1007/s00381-012-1816-7